What's wrong with defining a custom exception? It's literally one line: `class InvalidStateError(Exception): pass`. Two lines if you want to put the `pass` on its own line.
The built in exceptions are ones that are raised by the core interpreter. Even the stdlib doesn't get builtin exceptions, look at sqlite3.Error, for example. Defining a custom exception in the module alongside the function that raises it is both normal practice, and far more discoverable. Paul On Thu, 1 Sept 2022 at 22:42, Steve Jorgensen <stevec...@gmail.com> wrote: > I frequently find that I want to raise an exception when the target of a > call is not in an appropriate state to perform the requested operation. > Rather than choosing between `Exception` or defining a custom exception, it > would be nice if there were a built-in `InvalidStateError` exception that > my code could raise. > > In cases where I want to define a custom exception anyway, I think it > would be nice if it could have a generic `InvalidStateError` exception > class for it to inherit from. > > Of course, I would be open to other ideas for what the name of this > exception should be. Other possibilities off the top of my head are > `BadStateError` or `StateError`. > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/NMHNKSEZG7UZ6AIFTVGQXVECCNYYVODT/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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